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Finding the Fourth Proportional to 225,123.15, 337,746.17 and 75,388.11

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Solution

The fourth proportional to 225,123.15, 337,746.17 and 75,388.11 is: 113,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,123.15 : 337,746.17 = 75,388.11 : x
  2. Step 2: Convert to fraction form
    225,123.15/337,746.17 = 75,388.11/x
  3. Step 3: Cross multiply
    225,123.15x = 337,746.17 × 75,388.11
  4. Step 4: Simplify right side
    225,123.15x = 25,462,045,039.10
  5. Step 5: Solve for x
    x = 25,462,045,039.10/225,123.15
  6. Step 6: Final answer
    x = 113,102.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.